Hub.



lmmm

J. W. LAWHORN.

HUB.

APPLICATION FILED UCT. TB. 191

Patentd May 28,1918.

2 SHEETSSHEET 1- 1. w. LAWHORN.

HUB.

APPLICATION FILED OCT. 18, I917- Patented May 28, 1918.

Z SHEETS-SHEET 2- Specification of Letters Patent.

'r'r in mere.

enn w. nnwnonn, or MARYVILLE, TENNESSEE.

nun. 1

Patented May a, rare.

Application filed, October 18, 1917. Serial No. 197,290.

of Tennessee, have invented a new and useful Hub, of which the followingis a speci-.

fication.

The subject of this invention is a wheel hub, and the objects of theinvention are, first, to provide a hub in which the spokes may be easilymounted, second, to provide a hub which may be operated to tighten thespokes third, to provide a simple, durable and eflicient hub.

With the foregoing and other objects in view which will appear as thedescription proceeds the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

A practical embodiment of the invention is shown in the accompanyingdrawings, wherein Figure 1 is a view in elevation showing a fragment ofa wheel constructed in accordance with the invention, the outer plateand its associated parts removed;

Fig. 2 is a fragmentary view in elevation of the hub with the capremoved;

Fig. 3 is a central, longitudinal section of the hub;

Fig. 4: is a section on the line 44 of Fig. 3.

Referring to the drawings by numerals of reference The hub consists of acylindrical box 1 formed with a stepped annular flange 2 at its innerend, which end is countersunk, as indicated at 3. A lug or key 4 is alsoprovided on the flange 2. While only one lug 4 is shown herein, it is tobe understood that a series of lugs may be provided about the flange, ifdesired.

A sleeve 5 has a close sliding fit on the box 1 and this sleeve ispreferably made of resilient steel. The sleeve 5 is slit longitudinallyat one end to form tongues or strips 6 which may be slightly sprungoutwardly, as seen most clearly in Fig. 3. At its other or inner end thesleeve is formed with an outwardly projecting lug 7.

annular retaining plate 8 encircles the box and sleeve and is formedwith a central while the inner wall 10 is provided with a slot 12 forthe reception of the lug 7. By this means the box 1 and sleeve 5 aresecured to the retaining plate 8 so that the parts may notrevolverelative to each other. v

The box 1 is threaded exteriorly and upon its outer end is threaded asleeve 13 the inner end of which is beveled, .as indicated at 14:, totake under the tongues 6 with a wedging eifect. The outer end of thesleeve 13 may be provided with slots 15 for the reception of a spanneror other device with which the sleeve may be screwed on or ofi.

An annular retaining plate 16 encircles the sleeve 1, and is formed witha tubular projection which is threaded on the sleeve. A portion of theouter face of the projection, indicated at 17, is hexagonal to receiveSeated 011 the spring strips 6 and clamped between the inner plate 16,are spokes 20 of the wheel.

In practice the device is operated as follows:

The parts being assembled, as hereinbefore described, when it isdesirable to tighten the spokes or force them outwardly against the rim,the cap 19 is removed and the sleeve 13 threaded farther on the box 1thereby expanding the resilient tongues 6 and forcing the spokesoutwardly radially. During this operation the plate 16 may have beenslightly withdrawn from the spokes so as not to bind them, and may againbe clamped against the spokes when they have been sufliciently expanded.

Having thus described the invention, What is claimed as new and soughtby Letters Patent, is:

1. A hub, comprising a box formed with a stepped flange, there being alug projecting from the flange, a sleeve on the box and formed withtongues, a retaining plate having a cylindrical projection formed withspaced inner and outer walls mounted on the sleeve and box, the saidouter wall of the cylindrical projection provided with a slot for thereception of the lug, means for locking the sleeve; against rotationrelative I to the box and retaining plate, spokes seated on the tongues,means for expanding the 1:

tongues to force the spokes outwardly along wradi-al; lines,.-aandmeans. for ela nping-v the spokes against the retaining plate.

2. A hub, comprising a"box'fo'rmed-With a stepped annular flange atoneend, there being; 'a b g oir-'the fiange, a sleeve on 'thebox formedwith arlug at 'one end and tongues with amentral 'cylindricalprojectionformed with spaeedinner 'and' outer Walls, mounted walls eaoh'provid'e'd with a' slotforthereceptionof the lug on' the-sleeve "and-the*lug threaded on the sleeve, spokes-betweenl-the retaining plates andresting on "the'tongues,

'and a'eap threaded on the last mentioned retaining plate for closingthe hub.

In testimony that I claim the foregoing =as-1ny'fiown, I have heretoa'liixed my signature in -thepresence of two Witnesses.

OH-N W: LAWHORN.

\Vitnesses W. D, Krrolrm, JOHN LAWHOR'N.

0obies f tliis' pateiit ma be obtarned foP five cents each; teaaressingwn"icammrssioner'er Patents,

